package xdu.lz.stage2_design_pattern.chapter3_observer_pattern.observerApp3;

/**
 * 观察者接口
 */
public interface ThreadLifeCycleListener {
    /**
     * 状态变化后观察者实例的举动
     * @param event
     */
    void onEvent(ObserverRunnable.RunnableEvent event);
}
